Hotel
Flight
There are three airports in the area, being Batlimore Washington Internatoinal Airport (BWI), Reagan National Airport (DCA), and Washington Dulles Internalnational Airport (IAD). While any aiports of the will work, DCA is the recommended option.
Train
You will be able to naviagate to and from the airport, and around the city via the DC Metro. To do so, You do not need a Metro card. You can tap your physical debit or credit card, or electronic payment at the Metro stations.